Feed-water purifier



(No Modl.)

T. GUNNI'NG. FEED WATER PURIPIER. No. 547,719. Patented oct.' 8, 1895.

1x5; tions-1 rom Vformi vUN ITED STATES l:

PATENT FFICE.

THOMAS. GUNNINQ or" PITTsB-URG; PENNSYLVANIA:

. FEEpawATER PURIFIER.

"srnorncnnonfrormmgiiiaifoffLetters ratnt'lvo. 5475719, dated octber e,V1895.

.'Ail1easone1ea'-ranmy 30.1395. sesa11t.'6se,54. momoael.)

To 'alliz'ohom iii-.may concern: t;

vkn'ot'vnij`that I, THOMAS GUN'NING, of Pittsburg', in. thef'countyfofAllegheny 'and State of Pennsylvania, have invented certain ew andusefuljlxnprovements in Feed-Water En'riliers; andi-,do hereby declarethe followf fito .be `a Yful],"olear, and 'exact' description theinvention,` such as'willvenahle"others'v killedin .thefart to wakeaudjusethe same.v his .invention fis afeed-Watertpurier; for'.boilersandisl-'designeditoremoye 'all impuri-f Aties '-Irom t`eed1`water -I )efore entering the` --boiler,thereby'preventi-ngjscaIes orincrustang `onktheiinterior ot the boiler-shell. i nrthefr'objec't is.to provide a puritierof his 'attire-@which -shall. possess advantagesdnoi'nt t s i'mplieity'andfinexpensiveness, `and' which vwill bepractically automatic ationand not require constant at-vvv'llheseobjects I-.accomplish by empleying afcasingor cylinder intowhich the' feed-water f is first fed and passingthrough th'is 'cylinderacoiled 'steam-pipe. One .end of-this pipeconnects-'withthe-dotne'or'npper portion of the boiler,"and its'othervend opensV 4l yinto theboiler-shell ata point above thewa-l l'linetherein. i" lhuszthe steam is continu-- usi-y' passing through the lcoiledpipe in' the p'riiier and .thefeedwater in the latter is heated toabout the same-degree'asjthat in the boiler, causingthe impurities toseparate andfall on; a false bottom ofthe Acasi1 1g,'by`'x'vhich'they'are directed to the blow-oft pipe.

35 5. l 'lhenvention comprises the novel features of construction andalso the detail combination; and arrangement of parts, substantially.las hereinafter fully set forth,1 and particularly `Inthe accompanyingdrawing, th'e"'gure is` falview showing myj'improved water-purifierinterior of `the' casing A. -E's a steam-pipe which opens through 'the ithis bottom. To the center'of the headfpla'te 'lonnected apipe B, whichleads to boiler X. @Ofshoinli 'Supplied 'to casing A by a pipe A 'd atitsgvertex, throughwhich the sediment. 6o

passes tothe bottom proper. Thisfalse bot-l torn is securedat itsperipheral edge d, to the 's ideof casing A near the top thereof,leading` 6 5 from thesteam-dome of the` boiler. Within this casing thispipe. 'is formed into a'coil e' and is passed out through the. side ofthecasing` ate' above-thefalse vbottorn, and is then carried to theboiler-shel1, into which it opens. r}q at'jpoint'above'the.water-linetherein.A Thus there is a continuouscircula'tion of steam-and a constantpassage thereof `from the boiler to and through the -pur'itier'andthence back to v'the boiler. In this Way the steampress'ure in 7 5-the boiler is not perceptibly diminished, as the v stea'rnismerelydirected therefrom and then returned thereto.v I

In practice water' vfrom vthe exhaust-heater' is'fcd throughppe bto'thepurifier, and the 8e -heatfgenerated bythe steam-coil causes the'impurities in-the water'to f all to the bottom Aand -the. PurifiedVwater ascend's and' passes lthrough pipe B tothe boiler., The sediment l'fallingonto thefalse bottom passes through 85.

the openugin'the latter tothe outlet and 'is' removedfrom the lpiuincrvbyl opening the valve in the blow-o pipe. 1'

From what'has been'saidfit will'be seen that 'I -a purierconstructed-ashereinfdescribed is 9o i extremely simple audinexpensive, that there isno Waste of steam trom'- the boiler, a con---tinuouscircxilationfbeingmaintained between the latter and thepurifier.`A will also bev noted that the liabilityfof sedimentcollectinggg .on thev bottom ofthe p urier i's reduced to a minimum,since-all sediment willfall through the tapered'ffalse bottom' directl51to the outlet opening.' The 'purifier can be located at any suitablepoint relatively to the boiler. I'olaim as my inventionf '1. In afeed-water purifier, a casingor cylf inderv provided with a lowerblow-off opening and water inlet and outlet openings, a blowo pipeconnected t'o said blow-ott opening, a tapered false-bottom insaidcasing having a lower central opening', and the coiled 'steampipe insaid casing above said false-bottom, said water inlet and outletopenings being above said bottom, substantially as set forth` 2. Thecombination with a waterboiler having an upper steam space, of afeed-water purifier comprising a casing Vor cylinder having` an upperhead-plateprovided with an outlet opening, the pipe connected theretoleading to the boiler, a lower bottom plate having a" central outletopening a pipe connected thereto, a tapered false-bottom above said saidboiler at points above the water line zo therein, substantially as setforth. l

In testimony whereof I have signed thisl specitication'in the presenceof two subscribingwitnesses. Y

` THOMAS .GUNNING Witnesses: l

CEAS.' F. RANKIN, CHAS. H. RHODES.

